Masakazu OKAZAKI
著者に関連した記事は3件です。
更新情報
第12回
冷却孔周辺からの熱疲労き裂の初期成長
著者:
岡崎 正和,Masakazu OKAZAKI,関原 傑,Masaru SEKIHARA
発刊日:
公開日:
キーワードタグ:
Cooling holes Ni-base superalloy Temperature gradient Thermal stress Thermo-Mechanical Fatigue
岡崎 正和,Masakazu OKAZAKI,関原 傑,Masaru SEKIHARA
発刊日:
公開日:
キーワードタグ:
Cooling holes Ni-base superalloy Temperature gradient Thermal stress Thermo-Mechanical Fatigue
It is important to get basic understandings on early stage crack propagation behavior around the cooling holes machined in high temperature hot section components in advanced gas turbine system. For the purpose a new testing system has been developed in this work. By means of the test system the thermo-mechanical fatigue (TMF) crack propagation tests were carried out specifying a directionally solidified Ni-base superalloy specimen in which some cooling holes were introduced in the gauge section part o...
英字タイトル:
Early Growth Behavior of Crack Originated from Cooling Holes during Thermo-Mechanical Fatigue Loadings.
英字タイトル:
Early Growth Behavior of Crack Originated from Cooling Holes during Thermo-Mechanical Fatigue Loadings.
第10回
配管系の熱疲労評価技術の開発
著者:
笠原 直人,Naoto KASAHARA,伊藤 隆基,Takamoto ITOH,岡崎 正和,Masakazu OKAZAKI,東芝 奥田,奥田 幸彦,Yukihiko OKUDA,釜谷 昌幸,Masayuki KAMAYA,中村 晶,Akira NAKAMURA,町田 秀夫,Hideo MACHIDA,ＭＲＩ 松本,松本 昌昭,Masaaki MATSUMOTO
発刊日:
公開日:
キーワードタグ:
Knowledge-base Nuclear Piping Numerical simulation Thermal Fatigue Thermal Hydraulics Thermal Stress
笠原 直人,Naoto KASAHARA,伊藤 隆基,Takamoto ITOH,岡崎 正和,Masakazu OKAZAKI,東芝 奥田,奥田 幸彦,Yukihiko OKUDA,釜谷 昌幸,Masayuki KAMAYA,中村 晶,Akira NAKAMURA,町田 秀夫,Hideo MACHIDA,ＭＲＩ 松本,松本 昌昭,Masaaki MATSUMOTO
発刊日:
公開日:
キーワードタグ:
Knowledge-base Nuclear Piping Numerical simulation Thermal Fatigue Thermal Hydraulics Thermal Stress
Nuclear piping has various kinds of thermal fatigue failure modes. Main causes of thermal loads are structural responses to fluid temperature changes during plant operation. These phenomena have complex mechanisms and so many patterns, that their problems still occur even though well-known issues. To prevent thermal fatigue due to above thermal loads, the JSME guideline is adopted. Both thermal load and fatigue failure mechanism have been investigated and summarized into the knowledgebase. Based on abo...
英字タイトル:
Development of thermal fatigue evaluation methods of piping systems
英字タイトル:
Development of thermal fatigue evaluation methods of piping systems
第9回
高温疲労き裂進展下限界値と負荷履歴依存
著者:
岡崎 正和,Masakazu OKAZAKI,岩崎 亮,Ryou IWASAKI,笠原 直人,Naoto KASAHARA
発刊日:
公開日:
キーワードタグ:
Crack initiation and propagation Fatigue threshold Interaction between thermo-mechanical fatigue and high-cycle fatigue loadings Loading history Remaining life management Stress Ratio SUS316 steel
岡崎 正和,Masakazu OKAZAKI,岩崎 亮,Ryou IWASAKI,笠原 直人,Naoto KASAHARA
発刊日:
公開日:
キーワードタグ:
Crack initiation and propagation Fatigue threshold Interaction between thermo-mechanical fatigue and high-cycle fatigue loadings Loading history Remaining life management Stress Ratio SUS316 steel
Abstract Effect of loading history on the high cycle fatigue crack propagation behavior was experimentally studied in SUS 316 stainless steel, paying a special attention to an interaction between low-cycle thermo-mechanical fatigue loading and high cycle fatigue one in the fatigue crack propagation rates. The experimental results clearly demonstrat ed that the interaction was significant. It was shown that the stress ratio which was built-up under an influence of previous loading history made a major contr...
英字タイトル:
Fatigue Crack Threshold Depending on Loading History.
英字タイトル:
Fatigue Crack Threshold Depending on Loading History.